Buggy code:
public class BufferedRandomAccessFile extends RandomAccessFile implements FileDataInput { private static final long MAX_BYTES_IN_PAGE_CACHE = ( ( long ) ( Math . pow ( 2 , 27 ) ) ) ; private final String filePath ; public static final int DEFAULT_BUFFER_SIZE = 65535 ; private boolean isDirty ; private boolean syncNeeded ; private byte [ ] buffer ; private long bufferOffset ; private long current = 0 ; private int validBufferBytes = 0 ; private final long fileLength ; private final FileChannel channel ; private long markedPointer ; private int fd ; private final boolean skipCache ; private long bytesSinceCacheFlush = 0 ; private long minBufferOffset = Long . MAX_VALUE ; public BufferedRandomAccessFile ( String name , String mode ) throws IOException { } public BufferedRandomAccessFile ( String name , String mode , int bufferSize ) throws IOException { } public BufferedRandomAccessFile ( File file , String mode ) throws IOException { } public BufferedRandomAccessFile ( File file , String mode , int bufferSize ) throws IOException { } public BufferedRandomAccessFile ( File file , String mode , int bufferSize , boolean skipCache ) throws IOException { } public void sync ( ) throws IOException { } public void flush ( ) throws IOException { } private void reBuffer ( ) throws IOException { } @ Override public int read ( ) throws IOException { } @ Override public int read ( byte [ ] buffer ) throws IOException { } @ Override public int read ( byte [ ] buff , int offset , int length ) throws IOException { } public ByteBuffer readBytes ( int length ) throws IOException { } private final byte [ ] singleByteBuffer = new byte [ 1 ] ; @ Override public void write ( int val ) throws IOException { } @ Override public void write ( byte [ ] b ) throws IOException { } @ Override public void write ( byte [ ] buff , int offset , int length ) throws IOException { } private boolean isReadOnly ( ) { } private int writeAtMost ( byte [ ] buff , int offset , int length ) throws IOException { } @ Override public void seek ( long newPosition ) throws IOException { if ( newPosition < 0 ) throw new IllegalArgumentException ( "new<seq2seq4repair_space>position<seq2seq4repair_space>should<seq2seq4repair_space>not<seq2seq4repair_space>be<seq2seq4repair_space>negative" ) ; if ( ( isReadOnly ( ) ) && ( newPosition > ( fileLength ) ) ) throw new EOFException ( String . format ( "unable<seq2seq4repair_space>to<seq2seq4repair_space>seek<seq2seq4repair_space>to<seq2seq4repair_space>position<seq2seq4repair_space>%d<seq2seq4repair_space>in<seq2seq4repair_space>%s<seq2seq4repair_space>(%d<seq2seq4repair_space>bytes)<seq2seq4repair_space>in<seq2seq4repair_space>read-only<seq2seq4repair_space>mode" , newPosition , filePath , fileLength ) ) ; current = newPosition ; <START_BUG> if ( ( newPosition >= ( ( bufferOffset ) + ( validBufferBytes ) ) ) || ( newPosition < ( bufferOffset ) ) ) <END_BUG> reBuffer ( ) ; } @ Override public int skipBytes ( int count ) throws IOException { } public long length ( ) throws IOException { } public long getFilePointer ( ) { } public String getPath ( ) { } public boolean isEOF ( ) throws IOException { } public long bytesRemaining ( ) throws IOException { } @ Override public void close ( ) throws IOException { } public void reset ( ) throws IOException { } public long bytesPastMark ( ) { } public FileMark mark ( ) { } public void reset ( FileMark mark ) throws IOException { } public long bytesPastMark ( FileMark mark ) { } public static BufferedRandomAccessFile getUncachingReader ( String filename ) throws IOException { } protected static class BufferedRandomAccessFileMark implements FileMark { long pointer ; public BufferedRandomAccessFileMark ( long pointer ) { } } @ Override public String toString ( ) { } }

Fix:
if ( ( newPosition > ( ( bufferOffset ) + ( validBufferBytes ) ) ) || ( newPosition < ( bufferOffset ) ) )